Paint



UNITED STATES PATENT OFFICE.

THEODORE MOTT, OF ROCHESTER, MINNESOTA.

PAINT.

SPECIFICATION forming part of Letters Patent No. 555,221, dated February25, 1896.

Application filed March 14, 1894. Serial No. 503,586. (No specimens.)

To all whom it may concern.

Be it known that I, THEODORE MOTT, a citizen of the United States,residing at Roches ter, in the county of Olmstead and State ofMinnesota, have invented a new and useful Paint Composition, of whichthe following is a specification.

This invention relates to the manufacture of paint compounds; and it hasfor its object to produce a new and useful composition of this characterespecially adapted for use as a preservative of wood or metal to preventthe same from decaying or rusting.

To this end the invention primarily contem plates a fire and water proofpaint composed of such ingredients as will positively prevent the paintfrom cracking, peeling, or running in hot weather and which will causethe paint to always retain the same bright color and preserve itsdurable and lasting qualities.

The invention essentially consists in a combination of the ingredientsproportioned as stated: yellow ocher, ten pounds; sulphur, ten pounds;brown mineral, ten pounds; salt, ten pounds; rosin, ten pounds;coal-tar, one barrel; and gasoline or kerosene, one pint.

In the preparation of the paint all of the above-named ingredients,excepting the tar and gasoline or kerosene, are thoroughly mixedtogether and then introduced into the barrel of coal-tar. Heat isapplied to the mixture, and bystirring all of the ingredients areintimately commingled excepting the rosin, which is previouslythoroughly pulverized and which floats on top of the mixture untilcompletely melted, after which, or at which stage, a further stirring ofthe mixture will intimately work the rosin therein so as to bethoroughly commingled with the other ingredients composing the mixture.\Vhile in a boiling condition the paint is applied to the wood or metalsurfaces and when cool forms itself into a hard-glazed water and fireproof surface.

In event of the paint beginning to foam while boiling a suitablequantity, preferably about a quart, of cold water is introduced toobviate this difficulty, and wh enthe paint has been boiled sufficientlyand is ready for use about one pint of gasoline or kerosene is added totwo gallons of the paint, which gasoline or kerosene is used in thecapacity of a drier to cause the paint to set.

In order to secure the results sought for great dependence is placedupon the qualities of the several ingredients employed, and it is to benoted that the brown mineral, ocher, and salt are of the utmostimportance in the composition.

The brown mineral is a stony or rocky formation containing an excess orlarge percentage of iron oxide, which makes the mineral very desirable,in that it provides the composition with the quality of being imperviousand unchangeable in all kinds of weather,

especially in hot weather, when most paints.

soften, while at the same time the said mineral imparts a high gloss tothe paint. The combination of the ocher with the brown mineral providesa blending of colors which produces a very glossy and attractive paint.

The addition of the chloride or the salt to the composition is Veryimportant, in that the salt combines with the tar to form a compound noteasily ignited and which is therefore almost fireproof. The combinationof a chloride, and particularly salt or sodium chloride,

with tar has been found to be more desirable Such insoluble substancesare merely held in suspension in the composition and rather re tard thanenhance the even application or spreading of the paint It will befurther noted that the sulphur and rosin are not employed asthickeningagents, for the rosin especially has the efiect of forming aglazed and hardened paint when the same cools and thereby effectuallyprevents the paint from running in hot weather.

In using the paint the same is heated to a higher degree of temperaturewhen used on wood than when used on metal; but irrespective of thetemperature to which the paint composition is heated the same willalways retain the desirable characteristics and prop erties herein fullyreferred to.

Having thus described the invention, what I claim is An improvement inthe manufacture of fire and water proof paint compositions whichconsists in intimately mixing together equal proportions of yellowocher, sulphur, brown mineral, salt, and rosin, whereby the iron oxideof the brown mineral and the yellow ocher will combine to impart animpervious and bright glossy quality to the paint, then introducing themixture of said several ingredients into a proportionately largequantity of coal-tar, and then boiling the tar and the mixtureintroduced therein until the rosin has become completely melted, therebyoompletin g a paint composition or mixture wherein the sodium chloridecombines with the tar to form a compound not easily ignited, and therosin combines with all ingredients to form a glazed and hardenedsurface when the paint composition cools, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

THEODORE MOTT. lVitnesses:

S. T. LITTLETON, LIZZIE RICE.

